Male Red-Eyed Tree Frogs Shake Tree Branches to Communicate

Researchers at the Smithsonian Tropical Research Institute have discovered that male red-eyed tree frogs use the vibrations of shaken plant branches to communicate. Using his back legs to do frantically fast push-ups against a plant branch, a male tree frog that feels threatened by another telegraphs vibrations through the plant. The frog receiving the message often returns the same signal.